My Deep-sea Fishery

Xiang Yang nodded, "Give it a separate water tank."

Sea walnuts are very aggressive, and sea walnuts cannot be kept together with other sea creatures.

Fang Youqun Pidianpidian moved out a water tank from the cabin, filled the water tank with seawater, and carefully put the azure sea walnut into the water tank.

After doing all this, Fang Youqun turned to look at Xiang Yang, "To be honest, I still think this sea walnut looks like a jellyfish."

Xiang Yang smiled, "If you look carefully, you can find the difference between it and jellyfish."

In fact, although walnuts and jellyfish look similar, they are very different in terms of living habits, biological structure, and predation structure.

For example, swimming.

The vast majority of jellyfish move forward in seawater by generating power through body contraction.

Sea walnuts are different.

The sea moves differently, a bit like an octopus.

The sea walnut has eight tentacles on its body, and it can swim forward by rhythmically flapping its tentacles to generate power.

But if you subdivide it, the tentacles of the sea walnut are completely different from those of the octopus.

The tentacles of the sea walnut are actually ciliated horizontal plates, which are composed of countless tiny cilia. Although it can flap, it has no attack ability, which is completely different from the octopus.

In addition, there are countless stinging cells on jellyfish, and those stinging cells can be used for predation, attack and defense.

But sea walnuts do not have any cnidocytes.

Of course, sea walnuts also have their own specialties.

The tentacles of the sea walnut can contract freely like rubber, and there are many sticky cells on it, which can secrete a kind of mucus, which can firmly stick to the prey.

Of course, the biggest difference between jellyfish and sea walnuts is that jellyfish only have one mouth, and eat and excrete only through that mouth, just like a bottle, while sea walnuts have multiple mouths.

After processing this sea walnut, the remaining catches are normal catches, some are cheap and some are precious, such as eagle pomfret, but in general, the catches of this net are not Not too many, and there are no very valuable rare fish.

Under Chen Qingsheng's command, dozens of people worked together, and soon, all the fish were sorted out, and those that should be boxed were packed, and those that should be put into the live water tank were put into the live water tank, and some of them were really not suitable. Those worth pulling back all the way are sent to the processing line to be made into fish meal and fish balls.

Immediately afterwards, Xiang Yang asked Zhou Wang to cast another net.

The number of catches in the second net is much larger than that of the first net. It weighs several thousand catties, most of which are squid and the like, and there is no eagle pompano. Overall, the price is about the same as the first net.

Xiang Yang saw that two consecutive nets were fruitless, so he resolutely stopped ordering the third net.

"Then everyone will rest. Those who want to fish can go fishing, and those who want to sleep can go back to rest in the cabin." Xiang Yang looked at the chart and watched the voyage, making sure that if there is no accident today, he will not stop along the way Then, talk to the crew.

Xiang Yang stood on the deck for a while, although the sea was calm, but when the ship was sailing, it would generate a certain amount of wind. It didn't take long for Xiang Yang to feel a little cold.

Just when Xiang Yang wanted to go back to the cabin, suddenly, not far ahead, Xiang Yang saw a group of strange sea creatures that looked like fish and birds, jumping out of the sea from under the sea.

"Huh? Birds go into the water to hunt together? Or fish that can fly?" Xiang Yang quickly widened his eyes and looked at the group of strange sea creatures.

In the sea, there are many birds that can drill water, and it is not worth being surprised at all.

But fish that can fly are still very rare.

Soon, Xiang Yang saw clearly that it was a group of very strange fish.

Looking at the body of the fish, they seem to be no different from ordinary carp, and they are also streamlined and spindle-shaped.

What really amazed Xiang Yang was the very well-developed pectoral fins of the elders on the fish, just like the wings of a butterfly.

Xiang Yang counted silently in his heart, and soon, Xiang Yang was surprised to find that these fish could fly in the air for more than half a minute.

"This should be the flying fish." Xiang Yang thought inwardly.

Xiang Yang knows that in the South Atlantic Ocean, there is a very strange flying fish called flying fish.

Flying fish have a strange appearance, with long pectoral fins extending to the tail, like the wings of birds.

It can jump more than ten meters out of the water, stay in the air for more than forty seconds, and fly as far as four hundred meters.

On the blue sea, those flying fish appear and disappear from time to time, and the picture of breaking through the waves is very spectacular.

But Xiang Yang discovered that those flying fish were not flying, although they seemed to be flapping their wing-like fins, they were actually just gliding.

In Xiang Yang's head, he recalled the information about the flying fish.

Flying fish are widely distributed in cold waters around the world and are famous for their ability to fly.

They are all small in size, with wing-like stiff fins and an asymmetrical forked tail.

The leap is high enough for it to jump onto the deck of a ship above water, and crew members often find flying fish dropped on the deck at dawn.

Flying fish live in the upper layer of seawater and are the targets of all kinds of fierce fish scrambling for prey. The main purpose of flying fish is to escape from predators.

Flying fish do not jump out of the water easily, only when they are attacked or stimulated by the sound of a ship's engine, they will use their ability to fly.

The pectoral fins of the flying fish are well developed, and the whole body is like a long shuttle of weaving.

With its streamlined and graceful body, flying fish can move at a high speed of ten meters per second in the sea.

The color of the backs of the flying fish not far from the fishing boat was similar to that of the sea water. If it was an ordinary person, they might not be able to see the appearance of these flying fish clearly at such a distance.

But Xiang Yang can see clearly.

Xiang Yang found that these flying fish would return to the bottom of the sea every time they flew.

The flying fish speeds up underwater before taking off.

As they swim toward the surface, the fins of those flying fish cling to their streamlined bodies.

As soon as they broke through the water, the flying fish immediately spread their large fins and quickly flapped their tails still in the water to gain extra thrust. When the power is sufficient, the tail is completely out of the water, so it flies into the air and glides a few feet above the water surface at a speed of nearly 20 kilometers per hour.

Xiang Yang knew that flying fish can glide continuously, and every time they fall back into the water, the tail pushes the body up again.

In fact, the flight of flying fish is really just gliding.

Scientists have used video cameras to reveal the secrets of flying fish's flight.

The flying fish actually uses its tail to slam the water to take off, rather than vibrating its pectoral fins as one might imagine.

Before coming out of the water, the flying fish needs to adjust the angle and swim quickly under the sea surface. When it is approaching the sea surface, it sticks its pectoral and pelvic fins to the sides of its body, and then uses its powerful tail fin to swing sharply left and right to draw a zigzag water mark. It produces a strong momentum, prompting the fish body to burst out of the water like an arrow, and the take-off speed can reach 18 meters per second.